How do you use cuttlebone in fish tanks? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 2 Old 02-05-2019, 01:05 PM Thread Starter
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How do you use cuttlebone in fish tanks?

I want to try cuttlebone in my fish tanks to give calcium to the water but it floats. Should I try boiling it to see if it sinks?
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post #2 of 2 Old 02-05-2019, 04:42 PM
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I want to try cuttlebone in my fish tanks to give calcium to the water but it floats. Should I try boiling it to see if it sinks?

I would think there would be better ways but then I haven't tried cuttlebone.


An oyster shell or other calcium based substrate would probably do the trick.


The Reef tank guys use mrs wages picking lime which must be dripped as it creates a high ph. Calcium chloride is used to increase calcium, baking soda to increase alk and magnesium choride/Epsom salts for magnesium. But a reef tank has a much higher consumption of those than a FW tank.


Just my observations worth at most .02

maintain Fw and marine system with a strong emphasis on balanced, stabilized system that as much as possible are self substaning.

have maintained FW systems for up to 9 years with descendants from original fish and marine aquariums for up to 8 years.

With no water changes, untreated tap water, inexpensive lighting by first starting the tank with live plants (FW) or macro algae( marine)

see: https://www.tropicalfishkeeping.com/a...-build-295530/
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